Army




Army is a military organization primarily tasked with land-based warfare. Historically, armies have been one of the most important institutions for the defense and expansion of nations and empires. Over time, the composition, tactics, and technology employed by armies have evolved, reflecting changes in society, technology, and the nature of warfare itself.
History[edit]
The concept of an army dates back to antiquity, with the earliest organized forces appearing in Egypt and Mesopotamia around 3000 BCE. These early armies were composed of infantry and chariot units. The Roman Empire later revolutionized military organization and strategy, creating a highly disciplined and versatile army that allowed Rome to dominate the Mediterranean world.
In the Middle Ages, European armies were often composed of feudal levies, where lords would provide knights and soldiers in service to a king or emperor. The invention of gunpowder and the development of firearms in the late Middle Ages began to transform armies, leading to the decline of armored knights and the rise of professional standing armies.
The 19th and 20th centuries saw further evolution with the introduction of conscription, which massively expanded the size of armies. The World Wars demonstrated the destructive power of modern armies, with advancements in technology leading to unprecedented scale and lethality of military operations.
Structure[edit]
Modern armies are complex organizations, with a hierarchical structure designed to provide command, control, and support to its units. The basic unit of an army is the platoon, which is made up of squads. Several platoons form a company, which in turn can be part of a battalion or regiment. Multiple battalions or regiments form a brigade, and several brigades make up a division. Armies may also contain corps and field armies, which consist of multiple divisions.
Components[edit]
An army is typically divided into various branches and specialties, including:
- Infantry - Foot soldiers who form the backbone of any army, capable of fighting in all terrains.
- Cavalry (now mostly mechanized) - Units that move faster than infantry, traditionally on horseback but now using vehicles.
- Artillery - Units responsible for large-scale bombardment, using cannons and rocket systems.
- Armored - Units equipped with tanks and other armored vehicles.
- Engineer Corps - Specialists in construction, fortifications, and demolitions.
- Medical Corps - Responsible for medical care and evacuation of wounded personnel.
- Logistics Corps - Ensures the supply of ammunition, food, and equipment to the troops.
Modern Challenges[edit]
Today's armies face a range of challenges, from conventional state-on-state warfare to asymmetric warfare, including counter-insurgency and anti-terrorism operations. The increasing importance of cyber warfare and information operations has also led armies to adapt, incorporating cyber units and capabilities into their structures.
Conclusion[edit]
The army remains a crucial component of national defense and power projection for countries around the world. Its evolution continues in response to changing threats, technologies, and warfare doctrines, ensuring that armies remain effective in fulfilling their primary role of securing the state and its interests.
Sponsored Health Resource

W8MD Weight Loss, Sleep & MedSpa
Looking for physician-supervised weight loss, semaglutide, tirzepatide, or GLP-1 receptor agonist options? W8MD helps eligible patients in New York City, Brooklyn, New Jersey, Connecticut, Pennsylvania, Delaware, and greater Philadelphia with medical weight loss, sleep medicine, and long-term maintenance support.
GLP-1 specials: Affordable GLP-1 injections NYC and Philadelphia starting from $29.99/week and up for semaglutide with insurance accepted for qualifying visits, and $45/week and up for tirzepatide with insurance accepted for qualifying visits. Self-pay options start from $59.99/week and up for semaglutide and $69.99/week and up for tirzepatide.
Medical weight loss NYC | Affordable GLP-1 injections NYC | Budget GLP-1 weight loss shots Philadelphia | New Jersey medical weight loss | NYC medical weight loss | Philadelphia medical weight loss | Sleep clinic NYC | W8MD's Philadelphia GLP-1 doctor | Weight loss prescriptions NYC
Book a W8MD appointment · View GLP-1 specials
Paid promotional message. Eligibility, pricing, insurance coverage, medication availability, and results vary. Medical evaluation required.
Medical Disclaimer: WikiMD is for informational purposes only and is not a substitute for professional medical advice. Content may be inaccurate or outdated and should not be used for diagnosis or treatment. Always consult your healthcare provider for medical decisions. Verify information with trusted sources such as CDC.gov and NIH.gov. By using this site, you agree that WikiMD is not liable for any outcomes related to its content. See full disclaimer.
Credits:Most images are courtesy of Wikimedia commons, and templates, categories Wikipedia, licensed under CC BY SA or similar.
Translate page: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
தமிழ்,
తెలుగు,
Urdu,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
বাংলা
European
español,
Deutsch,
français,
Greek,
português do Brasil,
polski,
română,
русский,
Nederlands,
norsk,
svenska,
suomi,
Italian
Middle Eastern & African
عربى,
Turkish,
Persian,
Hebrew,
Afrikaans,
isiZulu,
Kiswahili,
Other
Bulgarian,
Hungarian,
Czech,
Swedish,
മലയാളം,
मराठी,
ਪੰਜਾਬੀ,
ગુજરાતી,
Portuguese,
Ukrainian